The hunt will start the 15th at midnight and will last until the 27th of December.
on the sim there are 12 penguins.
find them and click on them to get the gift.
all items are boxed.
To open it: rezz the item you got, right click it and choose open.
after that, select copy to inventory
you can then delete the box.
on the banner you will see most the gifts, like:
mesh black dress, mesh bracelet, sculpted boots with legwarmers, heart shaped lamp, vases, bread pillows to cuddle with..and more.
good luck and have fun!